`ubuntucentrum.pl`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:584c^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::ac43:ae09^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.88.76^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.174.9^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`dahlia.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a59^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dahlia.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c059^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dahlia.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2059^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dahlia.ns.cloudflare.com`
		A	108.162.192.89^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dahlia.ns.cloudflare.com`
		A	172.64.32.89^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dahlia.ns.cloudflare.com`
		A	173.245.58.89^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dahlia.ns.cloudflare.com`
NS	`hal.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bae^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hal.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1ae^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`hal.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21ae^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`hal.ns.cloudflare.com`
		A	108.162.193.174^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hal.ns.cloudflare.com`
		A	172.64.33.174^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hal.ns.cloudflare.com`
		A	173.245.59.174^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hal.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.88.76, 172.67.174.9
		IPv6 hints	2606:4700:3030::6815:584c, 2606:4700:3033::ac43:ae09
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=194, name=cloudflare-ech.com
SOA	`dahlia.ns.cloudflare.com`dns@cloudflare.com serial=2405937090

`pl`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a-dns.pl` ⭐
	NS	`b-dns.pl`
	NS	`d-dns.pl`
	NS	`f-dns.pl`
	NS	`h-dns.pl`
	NS	`j-dns.pl`
	TXT	`ccTLD of Poland`
	SOA	`a-dns.pl`dnsmaster@nask.pl serial=1784442814

WOT: SAFE (79/100)

Subdomains

www.ubuntucentrum.pl

Same first word

ubuntucentrum.pl

DNS History

6 records (6 active, 0 former)

●NSdahlia.ns.cloudflare.com2026-06-28 → 2026-07-19 · 2 obs

● 2026-06-28 12:16:40
● 2026-07-19 21:51:10

●NShal.ns.cloudflare.com2026-06-28 → 2026-07-19 · 2 obs

● 2026-06-28 12:16:40
● 2026-07-19 21:51:10

●A104.21.88.762026-06-28 → 2026-07-19 · 2 obs

● 2026-06-28 12:16:40
● 2026-07-19 21:51:10

●A172.67.174.92026-06-28 → 2026-07-19 · 2 obs

● 2026-06-28 12:16:40
● 2026-07-19 21:51:10

●A2606:4700:3030::6815:584c2026-06-28 → 2026-07-19 · 2 obs

● 2026-06-28 12:16:40
● 2026-07-19 21:51:10

●A2606:4700:3033::ac43:ae092026-06-28 → 2026-07-19 · 2 obs

● 2026-06-28 12:16:40
● 2026-07-19 21:51:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
pl	b-dns.pl, a-dns.pl, j-dns.pl, h-dns.pl...	-
ubuntucentrum.pl	hal.ns.cloudflare.com, dahlia.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.174

NS records: hal.ns.cloudflare.com, dahlia.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ubuntucentrum.pl (unsigned zone)

⏱️ Timing

Total: 486ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.174.9, 104.21.88.76`
AAAA	2	`2606:4700:3030::6815:584c, 2606:4700:3033::ac43:ae09`
NS	2	`dahlia.ns.cloudflare.com, hal.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`dahlia.ns.cloudflare.com dns.cloudflare.`

Analysis

Hierarchy

ubuntucentrum.pl serves as the parent of www.ubuntucentrum.pl.

IP Addresses

ubuntucentrum.pl has four IP addresses: 104.21.88.76, 172.67.174.9, 2606:4700:3030::6815:584c and 2606:4700:3033::ac43:ae09.

Among the host names that share IP numbers with ubuntucentrum.pl are coggie.co.uk, mekarbunga.shop, ads.suomiautomaatti.com and two others.

Name Servers

ubuntucentrum.pl uses two name servers for its delegation: dahlia.ns.cloudflare.com and hal.ns.cloudflare.com.

ubuntucentrum.pl has the same name server delegation as a number of other domains, such as kliosklep.pl, wisla-wioletta.pl, meble-grodzisk.pl and two more.

ubuntucentrum.pl has at least partial name server overlap with other domains, such as (0x706f726e)o-wife.com, naxtail.com, manga-club.com and two others.

It is common to see these name servers used together with name servers sullivan.ns.cloudflare.com and jaime.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

Hostname dahlia.ns.cloudflare.com directs to 108.162.192.89, 172.64.32.89 and 173.245.58.89 along with 3 other IP addresses.

Hostname hal.ns.cloudflare.com directs to 108.162.193.174, 172.64.33.174 and 173.245.59.174 along with 3 other IP addresses.

ubuntucentrum.pl - robtex.com